Isweek Mf5700 User manual

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Gas Mass Flow Meter

VC.3

Model MF5700

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MF5700UserManual1|Page

Gas Mass Flow Meter

withMEMSthermalsensingtechnology

MF5700Series

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User Manual

DocumentNo. 11‐2021‐MF2EN

Issuedate:  2021.11

Revision:  VC.3

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MF5700UserManual2|Page

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

Attention!

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Usewithcaution!

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Pleasecarefullyreadthismanualpriortooperatingthisproduct.

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Donotopenormodifyanyhardwarewhichmayleadtoirrecoverable

damage.

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Donotusethisproductifyoususpectanymalfunctionsordefection.

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Donotusethisproductforcorrosivemediaorinastrongvibration

environment.

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Usethisproductaccordingtothespecifiedparameters.

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Onlythetrainedorqualifiedpersonnelshallbeallowedtoperform

productservices.

Becautiousfortheelectricalsafety,evenitoperatesatalowvoltage,

anyelectricalshockmightleadtosomeunexpecteddamages.

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Thegastobemeasuredshouldbecleanandfreeofparticles.Donotapply

thismeterforliquidmedium.

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Donotapplyforanyunknownornon‐specifiedgasesthatmay

damagetheproduct.

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ForwirelessdatawithNB‐IoT,pleasebesurethenetworkisavailable.

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MF5700UserManual3|Page

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TableofContents

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1.Overview..................................................................................................5

2.Receipt/unpackoftheproducts................................................................6

3.Knowingtheproducts...............................................................................7

3.1Productdescription...............................................................................................7

3.2LCDdescription.....................................................................................................8

3.3Poweranddatacabledescription...........................................................................9

3.4Mechanicaldimensions..........................................................................................9

4.Installation..............................................................................................11

5.OperationandMENUdescription..............................................................14

5.1Checktheproductspecifications...........................................................................14

5.2Checktheleakage...............................................................................................14

5.3Powerthemeteranddigitaldataconnection.........................................................14

5.4Wirelessdatacommunication...............................................................................15

5.5MeterMENUdescription......................................................................................15

5.5.1Startingthemeasurement............................................................................................16

5.5.2MENUentrywithaverifiedpassword............................................................................16

5.5.3SettheRS485Modbusaddress......................................................................................17

5.5.4SettheRS485communicationbaudrate........................................................................17

5.5.5Resetorcalibratetheoffset..........................................................................................17

5.5.6Gasconversionfactor(GCF)fordifferentgasmeasurement.............................................18

5.5.7SettheResponsetime..................................................................................................18

5.5.8Selectthedisplaymode................................................................................................19

5.5.9Selectthedisplaylanguage...........................................................................................19

5.5.10Open/closethevalve.....................................................................................................19

5.5.11Setanalarm:upperinstantflowratelimit.....................................................................20

5.5.12Setanalarm:lowerinstantflowratelimit.....................................................................20

5.5.13Setanalarm:accumulatedflowrateortotalizerlimit.....................................................21

5.5.14Changethedefaultpassword........................................................................................21

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MF5700UserManual4|Page

5.5.15Resettheaccumulatedortotalizedflowrate..................................................................22

5.5.16ExittheMENU..............................................................................................................22

5.5.17Sleepingmode.............................................................................................................22

5.5.18Wakeupthemeter.......................................................................................................22

5.5.19MENUkeysequenceforthesettings..............................................................................23

5.6RS485Modbuscommunicationprotocol...............................................................24

5.6.1Hardwareconnection....................................................................................................24

5.6.2Communicationparameters..........................................................................................24

5.6.3Frame..........................................................................................................................25

5.6.4Functioncodes.............................................................................................................25

5.6.5Registers......................................................................................................................25

6.Productselectionandorderinformation...................................................29

6.1Productselection................................................................................................29

6.2Ordercontactandcustomersupport.....................................................................29

7.Technicalspecifications............................................................................30

8.Technicalnotesfortheproductperformance.............................................31

8.1Measurementprinciple........................................................................................31

8.2Precautionsforthebestperformanceoftheproduct..............................................31

8.2.1Comparisonwithathirdpartyreferencemeter...............................................................31

8.2.2Particlecontaminationandfluidiccleanness..................................................................32

8.2.3Applytoadifferentgasmedium....................................................................................32

9.Troubleshooting......................................................................................33

10.WarrantyandLiability..............................................................................34

11.Servicecontact........................................................................................36

AppendixI:Productevaluationkit..................................................................37

AppendixII:Documenthistory.......................................................................38

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MF5700UserManual5|Page

1. Overview

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Allcontactinformationcanbefoundattheendofthismanual.

ThismanualprovidesessentialinformationfortheoperationoftheMF5700seriesofgasmassflow

metersgeneral‐purposegasmetrologyapplications.Theproductperformance,maintenance,and

trouble‐shootingaswellastheinformationforproductorder,technicalsupport,andrepairarealso

included.

TheMF5700massflowmeterisoneofthebest‐sellingmassflowmeterproductsonmarket,dueto

itsperformanceandcost‐effectivedesignenabledwiththecompany’sproprietaryMEMS(micro‐

electro‐mechanicalsystems)thermalsensingtechnology.Thecurrentmodelisthe3rdgenerationof

theproductshavingsignificantlyupgradedfeaturessinceitsfirstreleasein2010.Theupgrade

includesmuch‐improvedaccuracy,anadditionalmodeltocoverflowrangeandchannelsize

compatibility;significantlyextendedmeasurementdynamicrange,wirelessdataoptions,andvalve

options.Theupgradealsoensuresback‐compatibilityforourexistingcustomers.Siargois

committedtocontinuingproductinnovationwhileofferingthebestvaluetoourcustomers.

Thisserialofproductsisdesignedforgeneralpurposemassflowsensingandcontrolpurposes.The

wettedmaterialsoftheproductsarecompatiblewithmostofthecommongasessuchasoxygen,

nitrogen,air,argon,carbondioxide,etc.Siargoalsooffersawidespectrumofoff‐the‐shelfand

customizedflow,pressure,temperature/humidity,andgasconcentrationsensingproductsand

providesintegrationandturn‐keysolutionstoourcustomers.Pleasecontactthemanufacturerfor

additionalinformation.

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MF5700UserManual6|Page

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2. Receipt/unpackoftheproducts

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Uponreceiptoftheproducts,pleasecheckthepackingboxbeforethedismantlementofthepacking

materials.Ensurenodamagesduringshipping.Ifanyabnormalityisobserved,pleasecontactand

notifythecarrierwhoshippedtheproductandinformthedistributorsorsalesrepresentativesifthe

orderisnotplaceddirectlywiththemanufacturer,otherwise,themanufacturershouldbeinformed

aswell.Foranyfurtheractions,pleaserefertothereturnandrepairsectioninthismanual.

Ifthepackingboxisintact,proceedtoopenthepackingbox,andyoushallfindtheproduct(either

themeterorthemeterwiththevalvepertheactualorder).Thepoweradapterand/ordatacableas

shownbelowmayalsobefoundaccordingtoyouractualorder.

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

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or











FlowmeterFlowsensor+valveAdapterdatacable



Figure2.1:MF5700flowmeterandaccessories

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Pleasecheckimmediatelyfortheintegrityoftheproductaswellasthepoweranddatacable,ifany

abnormalisidentified,pleasenotifythedistributor/salesrepresentativeormanufacturerassoonas

youcan.Ifanydefectsareconfirmed,anexchangeshallbearrangedimmediatelyviatheoriginal

saleschannel.(Note:theLCDscreenshallnotbelighteduntilthebatteryisinstalledorthepower

cableispluggedin).Thisusermanualshallalsoeitherbeincludedinthepackingboxorviaanonline

requestforanelectronicversion.Inmostcases,thismanualshallbemadeavailabletothecustomer

beforetheactualorder.

Themeterisdesignedwithlowpowerthatcanbeoperatedwith4AAbatteries.However,ifyou

orderedtheproductwiththecontrolvalve,itisrecommendedtohaveexternalpowersincethevalve

requireslargepowerconsumption.Apoweradaptermusthaveasafetycertificationforusewiththis

meter.Theexternalpower/dataconnectorisatype‐CUSB.Seethedetailedrequirementsinthe

operationsection.



MF5700UserManual7|Page

3. Knowingtheproducts

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3.1 Productdescription







Figure3.1:MF5700partsdescription



Figure3.2:MF5700withvalve



Meterhead

(rotatable)

Meterbody

LCDdisplay

MENUkeys

BSPP

connector

Flow

direction

Battery

chamber

cover

Dataand

powerport

Installation

screws

ON/OFF

solenoidvalve



MF5700UserManual8|Page



3.2 LCDdescription



TheLCDprovidesallinformationthattheproduct

measures.Somesymbolsarereservedforfuture

upgrades,andwillnotbelightedduringthe

operation.Thefollowingtabledetailsthemeaning

ofeachofthesymbols.



Figure3.3:LCDsymbolillustration.



Table3.1:Symbolsdescription

ACC

Thetoprow.ThedefaultdisplaysthetotalizedflowrateinL(liters),

m3(cubicmeters),orSCF(standardcubicfeet).Italsodisplays

pressure(ifkPalightsup)ortemperature(if°Clightsup)*.

FlowThe2ndrow.DisplaysinstantflowrateinL/min(Litersperminute)or

SCFH(standardcubicfeetperhour)orm3/h(cubicmetersperhour).

Batterystatus.

Valvestatus.ThecurrentproductprovidesanON/OFFcontrolvalve.

 LoRawirelessprotocolisenabledwhenlightsup.

NB‐IoTwirelessprotocolisenabledwhenlightsup.

WIFIwirelessprotocolisenabledwhenlightsup.

BluetoothLE4.2wirelessprotocolisenabledwhenlightsup.

ReservedforfutureupgradeofGPRSinclusion.



*Note:Boththepressureandtemperaturesensorscanbeintegratedwiththecurrentproduct

butnotwiththedefaultmodels.Pleasecontactthemanufacturerforfurther

information.





MF5700UserManual9|Page



3.3 Poweranddatacabledescription



   Table3.2:MF5700wireassignment.



 





Figure3.4:MF5700cable(USB‐C‐100)



3.4 Mechanicaldimensions

